Conveyer



3 Sheets-Shoot 1 E. A. BOLE CONVEYER Filed hum` 3 Sheets-91am: 2

Mbm

E. A. BOLE CONVEYER Filed June 2 I I s'b l I zuzuw. ms. 1564513 CONVEYERild June 2. 1924 3 Sheets-Sheet 3 lli-ali EDWARD A BOLE,

Patented Dec. 8, 1925.

PATENT QFFME.

EDWARD A.. ROLE, OF LUN@ BEACH, CALIFORNIA.

CONVEYER.

Application led June 2,

To ZZ 11i/tom it may concern.:

Be it known that l, EDWARD A. BOLE, a citizen of the United States,residing` at Long Beach, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements inConveyors, of which the following is a specification, reference beinghad therein to the accompanying drawing.

The present invention relates generally to conveyers, and aims toprovide a novel and improved conveyer structure, adapted especially fordraining sewage and removing the solid matter therefrom to be burned inan incinerator or otherwise disposed of.

Another object is the provision of such a conveyer comprising an endlessconveyer member of novel construction having hinged screens tofacilitate the cleaning thereof.

A further object is the provision of means for discharging air, steam,water or other fluid through the screens fpr cleaning them in apractical and effective manner.

A still further object is to improve the receiving end portion of theconveyer which is in the sump, whereby the sewage is properly deliveredon the conveyer member, and whereby the receiving end portion of theconveyer structure can be raised for making repairs or adjustments.

Vith the foregoing and other objects in view, which will be apparent asthe descrip tion proceeds, the invention resides in the construction andarrangement of parts as hereinafter described and claimed, it beingunderstood that changes can be made within the scope of what is claimed,without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein-Figure 1 is a side elevation of the improved conveyer, portions beingbroken away and shown in section.

Fig. 2 is a fragmentary end view looking in the direction of the arrow 2in Fig. 1, on an enlarged scale,

Fig. 3 is a horizontal section on the line :3 3 of Fig. 2.

Fig. l is a plan view of the receiving end portion of the conveyer, onan enlarged scale.

Fig. 5 is a section on the line 5-5 of Fig. il. on an enlarged scale.

Figs. 6 and 7 are cross sections on the re- 1924. serial No. 717,336.

spective lines 6-6 and 7-7 of Fig. 1, on an enlarged scale.

The conveyer is inclined, with its lower end portion within a sump 14through which the sewage flows from the inlet 15 to the outlet 1G, andthe sump has a depression or cavity 17 between the inlet and outlet inwhich the lower end of the conveyer is disposed.

The conveyer structure includes a suitable frame 18, which is inclined,and which is supported by posts or standards 19 and 20. rihe frame has aloose receiving end section or portion 21, which is hingedly connectedto the lower end of the main frame 18, so that the section 21 can beswung upwardly and downwardly out of and into the depression 17.

The endless conveyer member which is mounted for circuitous movement onthe inclined frame, comprises the endless sprocket chains 23 at theopposite side edges, composed of links or bars hingedly connectedtogether. Between the sprocket chains are the screens 2e of suitablemesh, which have frames 24, and the side members of the frames haveoutturned flanges 25 which are pivotally connected, as at 26, with thepivots of the links of the chains 23, the frames 24 of the screen istrailing from the pivots or hinges 26. The screen frames overlap at theupper run of the conveyer member, the rear free edge portion of eachscreen frame overlapping the hinged edge portion of the next screenframe in rear, whereby the solid matn ter will be carried upwardly bythe screens.

The flanges 25 assist in preventing the inatter on the screens fromrunning over the side edges of the screen frames, said flangesprojecting upwardly along the upper run of the conveyerl member.

The main frame 1S and section 21 have rollers 27 for guiding thesprocket chains 28 at their upper and lower runs, and polygonal sprocketwheels 28 and 29 are provided at the upper and lower limits of travel ofthe conveyer member, over which the sprocket chains pass.

As shown, there are two companion con- 'feyers disposed side by side, inorder that either one can be used or both of them simultan-eously. Also,one conveyer can be idle, for purpose of repairs, cleaning oradjustments, while the other is in operation, and

ll (l the two conveyors can be alternated, to provide Jfor continuousoperation.

The traine y18 of each conveyor basin elined rails 30', preferably ofwood, below the lower run of the conveyer member, on which the rear endsot the anges can drag as the screen frames are moved downwardly into thesump.

rlhe sprocket wheels 28 of each conveyer are mounted for rotation on ashaft 30. 'supported by the standards 20, the shafts 30 of the twoconvevers being' in alinement, as seen in Fig. 3. rihe shaft 30, forreasons which will appear hereinafter, is stationary, and the sprocketwheels 28 rotate on said shaft. In order to drive the conveyer member,sprocket wheels 3l are secured to the sprocket wheels 28 and sprocketchains 32 pass around the sprocket wheels 3l and spr cket wheels 33secured on a drive shaft 34 liournaled -for rotation on the standards 2@above the corresponding sprocket wheels 28. The shaft 34 has a pulleywheel 35 to receive a belt driven b v an 'engine or motor.

in order to clean the. screens 24, air, ste-ani, water or other Vfluidis delivered into each shaft 30 under pressure, said shaft being hollowor tubular, and a discharge nozzle 3G projects from the pipe and has aperforated T-head 37 directed douuiwardly toward the upper ends ot therails 30. lhe fluid discharged from the sp ay head 37 will pass fromwithin the conveyor member outwardly through the screens, as the screensmovl around the sprocket wheels 28, thereby cleaning the foreign matterfrom the screens, and the pressure oic the lIluid against the innersides of the screens will also throw the screens away trom. the sprocketchains against the upper terminals of the rails 30', so that the suddenstopping vof the screens by their contact with the rails 30 will assistin jarring or shocking loose the matter which may cling to the screens.This, in

addition to the discharge 'olf theliuid underpressure through thescreens, will effectively clean the screens as they start dowi'iwardly.

les shown in Fig. 2, air under pressure is supplied into the shafts y3()by blowers 38 having the discharge pipes 39` connected to the outer endsof the shafts 30,

in order to dissolve oil, grease and similar substances, from thescreens a solvent therefor can be supplied to the air?, so as to bedischarged through the screens. Thus,

:Feeders 40 of any well known hind can be attached to the air deliverypipes Si) tor 'feeding the solvent or solution to the air. Such feederscan be similar to those used lor suiplying chemicals or boiler compoundst-o water supplied to stean'i boilers, or the like, as well, known.

The lower sprocket Vwheels 29 of each conveyor are secured upon a shaft4l that is joianaled for rotation t its ends in bearings or slides 42that are mounted for upward and downward sliding movement in thestandards or posts 43 and 44 mounted in the sump 14. Said standards arechanneled to receive the slides, and the intermed' ate standard 44 maybe an beam to accommodate the adjacent slides 42 oll the two conveyerswhile the standards 43 are composed of channel irons. rlhe slides 42 canthus move along the standards when the 'frame section 21 is swungupwardly and downwardly, and the section 2l has longitudinal slots 45engaging the hinge pins 22, so as to permit of a sliding movement of thesection relatively to the main frame 1S when the section 2l is swungupwardly and downwardly, on account ot the shaft 4l and slides 42 havinga straight line motion along the standards 43 a-nd 44.

A windlass is provided for raising the section 21 of each conveyerstructure. Thus, a shaft- 46 is journaled on the upper ends of thecorresponding standards 43 and 44, and has drums or spools 47 on whichchains or other flexible elements 48 are wouiiid, the lower ends oi saidchains bein o' connected to the corresponding' slides 42. lhe shaft 4Ghas a cranli: 49 at its outer end or other means for rotating the shalftto wind the chains on the drums, so as to raise the section 21, as seenin dotted lines in Fig. 4, thereby permitting repairs or adjustments tobe made without emptying the sump or taking down the conveyor structure.A ratchet device 5() is provided tor preventing` reverse rotation of theshait 4G until it is desired to again lower the 'traine section 2l.

In order to direct the sewage to the upper run of: the convcyei.'member, vertical side plates 5l are provided above the section 21 ofeach conveyor structure, and said plates 5l are supported by suitablesupports 52 secured to the section 21, with the lower edges o'l theplates 5l disposed between the chains 23 and tlaiiges of the screentra-nies 24. Strips are secured to the iiuicr sides ol the plates 5labove (be screen frames, and said strips have olliset aprons Awhichdepend and oiferlap the inner sides of the flanges as seen in Fig. G,thereby directing the sewage to the screens 24, the aprons 54 preventingthe sewage from passing 'the side edges of the screen frames and alsokeeping the solid matter on the screens until raised out of the water.rl`he sump 14 is provided with an abutment therein, and said abutmentextends to the standard 44, and also forms 'the channels 5S leadingYfrom the inlet l5 to the two conveyers. The plates 5l project beyondthe lower end o'lf the conveyor and overlap the sides oit the channels58, as seen in Fig. 4, so that the sewage ilows lroin the channels 58between the plates l to the conveyor members.

fi, plate 5G is disposed between each pair of side plates 51 and iscurved or arched over the sprocket wheels 29, the side edges of theplate 5G being secured to the strips 53. The projecting edge portion ofthe plate 56 is adapted to overlap and bear on the bottom of the sump111 between the inlet 15 and depression 17, in order to prevent thesewage from passing under the lower end of the conveyer. In other words,the plate 56 detlects the sewage over such plate onto the upper run ofthe conveyer member, so that the sewage is strained, the water passingon through the screens, while the solid matter is carried upwardly withthe screens on the upper run of the conveyer member'.

t suitable gate 57 can be provided for each channel 58, in order thateither channel can be closed, so that the sewage will pass through theother channel only. In this way, one conveyer an be in operation, Whilethe other one is being repaired, cleaned or overhauled.

In opera-tion, the sewage flows from the inlet 15 through the channel 58between the plate 5l and over the plate 5G to the lower portion of theupper run of the conveyer member, the water passing through the screens24;', and said screens arrest the solid matter which is carried upwardlywith the upper run of the conveyer member. The screens 24, as they passaround the sprocket `wheels 28, are swung outwardly and downwardly awayfrom the sprocket wheels 28 and chains 28, against the rails 30', andthe fluid being discharged through the screens will assist in swingingthe screens outward ly and will also dislodge the foreign matter andblow same from the screens. The fluid thus has a double function,namely, to swing the screens outwardly and downwardly so as to strikethe rails 30 with a sudden jar to loosen the foreign matter, and,secondly, to discharge outwardly through the screens for loosening andremoving the foreign matter therefrom. The screen trames 2=1 ldrag onthe rails 30 in moving downwardly into 'the sump, and the screen framesmove upwardly around the sprocket wheels 29 under the plate 56 and willoperlap in moving upwardly from under the plate. 5G so as to catch andelevate the solid matter of the sewage. lVhen the gate 57 of oneconveyer is closed, the section 21 can be raised, as seen in dott-edlines in Fig. 4, for purpose of cleaning the device or making repairs oradjustments. The matter discharged from the upper end of the conveyercan be burned in an incinerator or otherwise disposed of.

Instead of using the tubular shaft 30 for supplying the Huid, it ispossible to extend a pipe upwardly between the upper and lower runs ofthe conveyer member adjacent to or across the shaft 30 to the spray head37. In other words, the nozzle 36 can illustrate the end of a pipeextending between the sprocket wheels 28.

Having thus described the invention, what is claimed as new is':

1. A conveyer including an endless conveyer member having screens hingedto swing outwardly, and means arranged to discharge fluid outwardlythrough said screens at the discharge portion of the conveyer to swingthe screens outwardly and to simultaneously dislodge foreign mattertherefrom.

2. A conveyer including an endless conveyer member having screens hingedto swing outwardly, a rail extending under said conveyer member for theContact of the screens, and means arranged to discharge fluid outwardlythrough the screens at the discharge portion of the conveyer to swingthe screens outwardly against said rails and to simultaneously dislodgeforeign matter from the screens.

3. A conveyer including endless sprocket chains, screens hingedlyconnected to said chains to swing outwardly, means for mounting thechains for circuitous movement including a tubular shaft and sprocketwheels Jfor the chains on said shaft, a spray nozzle carried by saidshaft between the sprocket wheel and arranged to discharge the fluidoutwardly through the screens at the dis-- charge portion of theconveyer to swing the screens outwardly and to simultaneously dislodgeforeign matter therefrom, and means for supplying fluid into said shaft.

4. A conveyer including an endless conveyer member having screens hingedto swing outwardly, a rail underneath the conveyer member over which thescreens are adapted to be dragged at the lower run of said member, meansfor mounting the conveyer member for circuitous movement includingsprocket wheels at the receiving and discharge portions of the conveyer,and means between the sprocket wheels at the discharge portion of theconveyer arranged to discharge fluid outwardly through the screens toclean the screens and to simultaneously swing them outwardly so as tostrike said rail.

5. A conveyer including an inclined frame having a lower end sectionconnected thereto with a hinge and sliding connection, an

endless conveyer member mounted on the frame and end section and havingscreens,

and means grueling said end section for up ward and downward movementalong a straight line.

6. A conveyer including an inclined frame having a lower end sectionconnected thereto with the hinge and sliding connection, an endlessconveyer member mounted on said frame and section and having screens, ashaft carried by said section, sprocket wheels for the conveyer memberon said shaft,

standards, slides supporting seid shaft and movable along saidstandards, and ineens sump, an endless'eonyeyer ineinber mounted onwseidfreine and having screens, the receiving portion of the eonveyer memberworking in said depression, und plates eerried by seidfrznneandextending beyond seid depression for directing the water and othermatter in the-snmp onto the upper run of the eonyeyer member.

8. A eonveyer Comprising, in combination with e Snn'lp having a`depression, an inelined frame haring its lowerend in seid sump, enendless eonveyer inernber mountw ed on said freine and having; sereeneDthe receiving portion of the eonreyerl nieniber working in saiddepression, side plates eerried by, Said` freine extending upwardly fromthe lowerend portion thereof for direeting water and other matter in thesump between seid pistes to the upper run et' seid eonveyer inenxber,:rnd e. de'tleetor plate between said pla-tes over the receiving`portion of the eonveyer nieinber und extending in.

advance-of seid depression for deileetingthe liquid and metter upwardlyover the upper run of the eonveyei' member.

Q. A eonveyer comprising :t freind endlees sprocket elmineinonnted onSaid freine7 seieeng; between and hingedly connected with .L

seid sprocket chains and having side lin to extend upwardly et the upper1 seid chaine, side pla te@ carried by the. et the lower endL portionthereof and e\ ing upwardly above the upper run et said ehune the loweredges olf seid plate diepcsed between seid elimine :1nd depending apronscarried by Seid. p n and oterlapping said flanges at the inner Sidesvthereof.

In testimony whereof I hereunto nr'iir: iny

signature.

EDVARD A. BOLT-E.

